How To Fix FZ334 - Customer & & is already contained in proposal & &

FZ334 - Overview

• Message type: E = Error

• Message class: FZ - Payment Transactions

• Message number: 334

• Message text: Customer & & is already contained in proposal & &

What causes this issue?

The specified payment proposal already contains customer/vendor items.
To avoid overlaps, items from this account cannot be taken into
consideration in a different payment proposal.

System Response

The account is not processed.

How to fix this error?

Special actions are not necessary.

Error message extract from SAP system. Copyright SAP SE.

FZ334 - Details

• The SAP error message FZ334, which states "Customer & & is already contained in proposal & &," typically occurs in the context of financial transactions, particularly when dealing with proposals for payment or billing. This error indicates that the customer in question is already included in a specific proposal, which prevents the system from adding them again.
  
  Cause:
  
  Duplicate Entry: The customer is already listed in the proposal you are trying to create or modify.
  Proposal Management: The system is designed to prevent duplicate entries to maintain data integrity and avoid confusion in financial transactions.
  Incorrect Proposal Reference: You may be referencing the wrong proposal or have mistakenly included the same customer multiple times.
  
  
  Solution:
  
  Check Existing Proposals: Review the existing proposals to confirm if the customer is indeed already included. You can do this by navigating to the proposal management screen and searching for the specific proposal.
  Modify the Proposal: If the customer is already in